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# This file is part of Tryton. The COPYRIGHT file at the top level of
# this repository contains the full copyright notices and license terms.
from trytond.i18n import lazy_gettext
from trytond.model import Model, fields
from trytond.pool import Pool
from trytond.pyson import Eval, If
__all__ = ['IncotermMixin', 'IncotermAvailableMixin']
class IncotermMixin(Model):
incoterm = fields.Many2One(
'incoterm.incoterm', lazy_gettext('incoterm.msg_incoterm'),
ondelete='RESTRICT')
incoterm_location = fields.Many2One(
'party.address', lazy_gettext('incoterm.msg_incoterm_location'),
ondelete='RESTRICT',
search_order=[
('is_incoterm_related', 'DESC NULLS LAST'),
('party.distance', 'ASC NULLS LAST'),
('id', None),
])
@classmethod
def __setup__(cls):
super().__setup__()
readonly = cls._incoterm_readonly_state()
cls.incoterm.states = {
'readonly': readonly,
}
cls.incoterm_location.states = {
'readonly': readonly,
'invisible': ~Eval('incoterm', False),
}
related_party, related_party_depends = cls._incoterm_related_party()
cls.incoterm_location.search_context = {
'related_party': related_party,
}
cls.incoterm_location.depends = {'incoterm'} | related_party_depends
@classmethod
def _incoterm_readonly_state(cls):
return ~Eval('state').in_(['draft'])
@classmethod
def _incoterm_related_party(cls):
return Eval('party'), {'party'}
@property
def incoterm_name(self):
name = ''
if self.incoterm:
name = self.incoterm.rec_name
if self.incoterm_location:
name += ' %s' % self.incoterm_location.rec_name
return name
class IncotermAvailableMixin(IncotermMixin):
available_incoterms = fields.Function(fields.Many2Many(
'incoterm.incoterm', None, None, "Available Incoterms"),
'on_change_with_available_incoterms')
incoterm_location_required = fields.Function(fields.Boolean(
lazy_gettext('incoterm.msg_incoterm_location_required')),
'on_change_with_incoterm_location_required')
@classmethod
def __setup__(cls):
super().__setup__()
readonly = cls._incoterm_readonly_state()
cls.incoterm.domain = [
If(~readonly,
('id', 'in', Eval('available_incoterms', [])),
()),
]
cls.incoterm_location.states['required'] = (
Eval('incoterm_location_required', False))
@fields.depends('company', 'party', methods=['_get_incoterm_pattern'])
def on_change_with_available_incoterms(self, name=None):
pool = Pool()
Incoterm = pool.get('incoterm.incoterm')
pattern = self._get_incoterm_pattern()
incoterms = Incoterm.get_incoterms(self.company, pattern)
if self.party:
party_incoterms = {r.incoterm for r in self._party_incoterms}
else:
party_incoterms = set()
return [
i for i in incoterms
if not party_incoterms or i in party_incoterms]
@fields.depends()
def _get_incoterm_pattern(self):
return {}
@fields.depends('incoterm')
def on_change_with_incoterm_location_required(self, name=None):
if self.incoterm:
return self.incoterm.location
@fields.depends(methods=['_set_default_incoterm'])
def on_change_company(self):
try:
super_on_change = super().on_change_company
except AttributeError:
pass
else:
super_on_change()
self._set_default_incoterm()
@fields.depends(methods=['_set_default_incoterm'])
def on_change_party(self):
try:
super_on_change = super().on_change_party
except AttributeError:
pass
else:
super_on_change()
self._set_default_incoterm()
@fields.depends('incoterm', 'party', 'company',
methods=['_party_incoterms'])
def on_change_incoterm(self):
if self.incoterm:
if self._party_incoterms:
for record in self._party_incoterms:
if record.company and record.company != self.company:
continue
if record.incoterm == self.incoterm:
self.incoterm_location = record.incoterm_location
break
else:
self.incoterm_location = None
else:
self.incoterm_location = None
@fields.depends('incoterm', 'party', 'company',
methods=['on_change_with_available_incoterms',
'_incoterm_required', '_party_incoterms'])
def _set_default_incoterm(self):
self.available_incoterms = self.on_change_with_available_incoterms()
if not self.available_incoterms:
self.incoterm = None
self.incoterm_location = None
elif self._incoterm_required:
if self.incoterm not in self.available_incoterms:
if len(self.available_incoterms) == 1:
self.incoterm, = self.available_incoterms
else:
self.incoterm = None
self.incoterm_location = None
if self.party and self._party_incoterms:
for record in self._party_incoterms:
if record.company and record.company != self.company:
continue
if record.incoterm in self.available_incoterms:
self.incoterm = record.incoterm
self.incoterm_location = record.incoterm_location
break
else:
self.incoterm = None
self.incoterm_location = None
elif self.incoterm not in self.available_incoterms:
self.incoterm = None
self.incoterm_location = None
@property
def _party_incoterms(self):
raise NotImplementedError
@property
def _incoterm_required(self):
raise NotImplementedError
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